35
35

Sep 18, 2013
09/13

by
J. P. Hessling; V. S. Shumeiko; Yu. M. Galperin; G. Wendin

texts

######
eye 35

######
favorite 0

######
comment 0

Non-equilibrium excess noise of a short quasi one-dimensional constriction between two superconductors is considered. A general expression for the current-current correlation function valid for arbitrary temperatures and bias voltages is derived. This formalism is applied to a current-carrying quantum channel with perfect transparency. Contrary to a transparent channel separating two normal conductors, a weak link between two superconductors exhibits a finite level of noise. The source of noise...

Source: http://arxiv.org/abs/cond-mat/9509018v1

38
38

Sep 18, 2013
09/13

by
L. S. Levitov; A. V. Shytov

texts

######
eye 38

######
favorite 0

######
comment 0

We apply the bosonization technique to the problem of tunneling in a Fermi liquid, and present a semiclassical theory of tunneling rates. To test the method, we derive and evaluate an expression for the tunneling current in the problem of two parallel Luttinger liquids. Next we study tunneling between parallel two dimensional Fermi liquids. In the absence of a magnetic field, the conductance $I/V$ has a resonance peak at zero bias. Our estimate for the peak broadening agrees with the many-body...

Source: http://arxiv.org/abs/cond-mat/9510006v1

Topics: Chinatown (Boston, Mass.), Boston (Mass.), Newspapers

25
25

Sep 22, 2013
09/13

by
T. Gehrmann; W. J. Stirling

texts

######
eye 25

######
favorite 0

######
comment 0

We have substantially extended our analysis of the partonic content of the pomeron. Ambiguities in the normalization of the pomeron flux and the possiblity of a direct coupling of the pomeron to single quarks are discussed, yielding two equally possible scenarios for the parton distributions in the pomeron. We discuss various experimental tests of these scenarios.

Source: http://arxiv.org/abs/hep-ph/9503351v2

29
29

Sep 22, 2013
09/13

by
Robert G. Leigh; Riccardo Rattazzi

texts

######
eye 29

######
favorite 0

######
comment 0

We reconsider post-inflation gravitino production, in the context of hidden sector supergravity models. We discuss the possible role of supersymmetry breaking from finite temperature effects in enhancing the rate for gravitino production and argue that there is no such enhancement. Our conclusion is based on a simple decoupling argument, which is independent of temperature. We also characterize the properties of goldstino-like hydrodynamic fluctuations that arise in supersymmetric models at...

Source: http://arxiv.org/abs/hep-ph/9503402v1

61
61

Sep 18, 2013
09/13

by
Savas Dimopoulos; Dave Sutter

texts

######
eye 61

######
favorite 0

######
comment 0

The supersymmetric $SU(3)\times SU(2)\times U(1)$ theory with minimal particle content and general soft supersymmetry breaking terms has 110 physical parameters in its flavor sector: 30 masses, 39 real mixing angles and 41 phases. The absence of an experimental indication for the plethora of new parameters places severe constraints on theories posessing Planck or GUT-mass particles and suggests that theories of flavor conflict with naturalness. We illustrate the problem by studying the...

Source: http://arxiv.org/abs/hep-ph/9504415v1

35
35

Sep 22, 2013
09/13

by
Matthias Neubert

texts

######
eye 35

######
favorite 0

######
comment 0

I discuss the theoretical uncertainties in the extraction of $|\,V_{cb}|$ from semilep\-to\-nic decays of $B$ mesons, taking into account the most recent theoretical developments. The main sources of uncertainty are identified both for the exclusive decay mode $B\to D^*\ell\,\bar\nu$ and for the inclusive channel $B\to X\,\ell\,\bar\nu$. From an analysis of the available experimental data, I obtain $|\,V_{cb}|_{\rm excl} = 0.041\pm 0.003_{\rm exp}\pm 0.002_{\rm th}$ from the exclusive mode, and...

Source: http://arxiv.org/abs/hep-ph/9505238v1

31
31

Sep 22, 2013
09/13

by
The MILC Collaboration; C. Bernard; T. Blum; A. De; T. DeGrand; C. DeTar; Steven Gottlieb; Urs M. Heller; N. Ishizuka; L. KÃ¤rkkÃ¤inen; J. Labrenz; K. Rummukainen; A. Soni; R. Sugar; D. Toussaint

texts

######
eye 31

######
favorite 0

######
comment 0

Preliminary results from the MILC collaboration for $f_B$, $f_{B_s}$, $f_D$, $f_{D_s}$ and their ratios are presented. We compute in the quenched approximation at $\beta=6.3$, 6.0 and 5.7 with Wilson light quarks and static and Wilson heavy quarks. We attempt to quantify all systematic errors other than quenching, and have a first indication of the size of quenching errors.

Source: http://arxiv.org/abs/hep-ph/9503336v1

38
38

Sep 21, 2013
09/13

by
J. Govaerts; M. Kokkoris; J. Deutsch

texts

######
eye 38

######
favorite 0

######
comment 0

The sensitivity of polarisation-asymmetry correlation experiments to charged currents of right-handed chirality contributing to allowed $\beta$-decay is considered in the most general context possible, independently of any type of approximation nor of any specific model for physics beyond the Standard Model of the electroweak interactions. Results are then particularised to general Left-Right Symmetric Models, and experimental prospects offered by mirror nuclei are assessed explicitly on...

Source: http://arxiv.org/abs/hep-ph/9508306v2

37
37

Sep 21, 2013
09/13

by
Janusz Rosiek

texts

######
eye 37

######
favorite 0

######
comment 0

We discuss possible manifestations of R parity breaking in the Higgs sector. We illustrate this with three examples: high-energy mono-photon production at LEP, calculation of limits on associated production of invisibly decaying Higgs bosons and discussion of non-standard scalar decays in the MSSM with broken R parity.

Source: http://arxiv.org/abs/hep-ph/9508355v1

24
24

Sep 23, 2013
09/13

by
Zhi-zhong Xing

texts

######
eye 24

######
favorite 0

######
comment 0

The two-body mesonic $B$ decays induced only via a single $W$-exchange or annihilation quark diagram, such as $B^-_u\rightarrow D^{(*)-}_sK^{(*)0}$ and $\bar{B}^0_d\rightarrow D^{(*)+}_sK^{(*)-}$, are analyzed in the factorization approximation. We estimate the branching ratios for those transitions into two pseudoscalar mesons, and find them to be negligibly small. The significant effect of final-state rescattering is illustrated by taking $B^-_u\rightarrow D^-\bar{K}^0$ for example.

Source: http://arxiv.org/abs/hep-ph/9512280v1

40
40

Sep 18, 2013
09/13

by
W. Brandner; J. Bouvier; E. K. Grebel; E. Tessier; D. de Winter; J. -L. Beuzit

texts

######
eye 40

######
favorite 0

######
comment 0

Using adaptive optics at the ESO 3.6m telescope, we obtained diffraction limited JHK-images of the region around the Herbig AeBe star NX Pup. We clearly resolved the close companion (sep. 0.128") to NX Pup -- originally discovered by HST -- and measured its JHK magnitudes. A third object at a separation of 7.0" from NX Pup was identified as a classical T Tauri star so that NX Pup may in fact form a hierarchical triple system. We discuss the evolutionary status of these stars and...

Source: http://arxiv.org/abs/astro-ph/9509051v1

27
27

Sep 22, 2013
09/13

by
FranÃ§ois Lalonde; Dusa McDuff

texts

######
eye 27

######
favorite 0

######
comment 0

In this paper we first show that the necessary condition introduced in our previous paper is also a sufficient condition for a path to be a geodesic in the group $\Ham^c(M)$ of compactly supported Hamiltonian symplectomorphisms. This applies with no restriction on $M$. We then discuss conditions which guarantee that such a path minimizes the Hofer length. Our argument relies on a general geometric construction (the gluing of monodromies) and on an extension of Gromov's non-squeezing theorem...

Source: http://arxiv.org/abs/math/9503228v1

35
35

Sep 22, 2013
09/13

by
Rob P. Olling

texts

######
eye 35

######
favorite 0

######
comment 0

I present a new method of deriving the shape of the dark matter (DM) halos of spiral galaxies. The method relies on the comparison of model predictions with high spectral and spatial resolution HI observations of the gas layer. The potential arising from the {\em total} mass distribution of the galaxy is used in the calculation of the vertical distribution of the gas. I developed a new algorithm to calculate the force field of an arbitrary, azimuthally symmetric, density distribution. This...

Source: http://arxiv.org/abs/astro-ph/9505002v1

29
29

Sep 23, 2013
09/13

by
P. Amore; M. B. Barbaro; A. De Pace

texts

######
eye 29

######
favorite 0

######
comment 0

We discuss the description of a many-body nuclear system using Hamiltonians that contain the nucleon relativistic kinetic energy and potentials with relativistic corrections. Through the Foldy-Wouthuysen transformation, the field theoretical problem of interacting nucleons and mesons is mapped to an equivalent one in terms of relativistic potentials, which are then expanded at some order in 1/m_N. The formalism is applied to the Hartree problem in nuclear matter, showing how the results of the...

Source: http://arxiv.org/abs/nucl-th/9512026v1

116
116

Sep 23, 2013
09/13

by
V. P. Maslov; O. Yu. Shvedov

texts

######
eye 116

######
favorite 0

######
comment 0

We investigate an infinite dimensional analog of the theory of Lagrangian manifolds with complex germs. To such a manifold we assign a canonical operator that depends on creation and annihilation operators. This operator is by definition the geometrical quantization for these isotropic manifolds with complex germs. We prove that for secondary quantized equations this quantization is the asymptotics for the Cauchy problem. Results of Berezin are used thouroughly in the construction of the...

Source: http://arxiv.org/abs/q-alg/9512012v1

69
69

Sep 18, 2013
09/13

by
B. Kaulakys; G. Vilutis

texts

######
eye 69

######
favorite 0

######
comment 0

A simple theory of the Rydberg atoms ionisation by electromagnetic pulses and microwave field is presented. The analysis is based on the scale transformation which reduces the number of parameters and reveals the functional dependencies of the processes. It is shown that the observed ionisation of Rydberg atoms by subpicosecond electromagnetic pulses scale classically. The threshold electric field required to ionise a Rydberg state may be simply evaluated in the photonic basis approach for the...

Source: http://arxiv.org/abs/quant-ph/9504007v1

This "funbook" presents reading and writing activities to help children prepare for reading and writing. Activities introduce the alphabet, and assist children to print letters of the alphabet and engage in other readiness tasks. The margins of many of the pages present instructions for "reading partners." The booklet includes a removable alphabet that can be put where children can see it every day. It also includes a list of 10 steps reading partners can do to help children...

Topics: ERIC Archive, Creative Activities, Early Childhood Education, Emergent Literacy, Learning...

2
2.0

Nov 5, 2019
11/19

by
Amherst Community Television

movies

######
eye 2

######
favorite 0

######
comment 0

Amherst Town Meeting - October 25, 1995

Topics: amherst, massachuestts, amherst town government, amherst town hall, amherst community television

A simulator sickness research effort was undertaken as an important addition to the Qualification Operational Test and Evaluation (QOT&E) for the MH/60G Operational Flight Trainer (OFT). The primary impetus for the experiment was the configuration of the device (wide field of view and limited motion) and pilot reports of simulator sickness symptoms during device development. The authors assessed (a) post-flight simulator sickness symptoms, (b)prolonged simulator sickness symptoms, and (c)...

Topics: DTIC Archive, Silverman, Denise R., DAYTON UNIV OH RESEARCH INST, *HELICOPTERS, *FLIGHT SIMULATORS,...

0
0.0

Nov 9, 2019
11/19

by
Richard N Conner; D Craig Rudolph

texts

######
eye 0

######
favorite 0

######
comment 0

The objective of this protocol is to provide a standardized testing and evaluation procedure that can be used by the Air Force to screen commercially available microbial amendment products. The objective of testing and evaluating commercial microbial amendments is to demonstrate, under careftilly controlled conditions, whether these amendments provide a significant improvement over indigenous microorganisms in the biodegradation of petroleum hydrocarbons.

Topics: DTIC Archive, BATTELLE COLUMBUS OH, *SOIL POLLUTION, TEST AND EVALUATION, HYDROCARBONS, SITE...

0
0.0

Nov 4, 2019
11/19

by
Zhu Xiang-Yun, Ge Song Hong, De-Yuan

texts

######
eye 0

######
favorite 0

######
comment 0

Diamond thin films are envisioned for a wide variety of applications due to the unique chemical, mechanical, electrical, and optical properties of this material. However, deposition limitations currently prevent the realization of many of these applications. The nucleation of diamond is one critical limitation which severely restricts the use of diamond films for emerging technologies. The nucleation process dictates the structure and morphology of the diamond thin films; therefore, nucleation...

Topics: DTIC Archive, McGinnis, Sean P., STANFORD UNIV CA DEPT OF MATERIALS SCIENCE AND ENGINEERING,...

An architecture is presented for combining rule based and case based reasoning. The architecture is intended for domains that are understood reasonably well, but still imperfectly. It uses a set of rules, which are taken to be only approximately correct, to obtain a preliminary answer for a given problem; it then draws analogies from cases to handle exceptions to the rules. Having rules together with cases not only increases the architecture's domain coverage, it also allows innovative ways of...

Topics: DTIC Archive, Golding, Andrew R., UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY INFORMATION...

Regular Council Proceedings

Topics: Fort Wayne, Regular Council Proceedings, 1995-04-25

The educational objective of the Russian "Development" curriculum for children ages 3-7 is the development of creative and intellectual abilities. Theoretical foundations for the curriculum include the works of Vygotsky, Venger, Leontev, and Zaporozhets, which offer ideas such as: (1) child development is the unity of affective and cognitive structures; (2) cognitive development occurs through child-motivated activities; and (3) developing child abilities in preschool-age children...

Topics: ERIC Archive, Cognitive Ability, Cognitive Development, Cognitive Processes, Curriculum Design,...

This booklet is the second in a series of four research reports that address problems in smaller American cities. The reports focus on issues of collaboration between public, private, and not-for-profit sectors in communities; profile urban issues in the context of strategies for systemic change; and suggest new models for strengthening communities. This report introduces the reader to the role deliberation can play in creating new opportunities for communities to work together in more...

Topics: ERIC Archive, Citizen Role, Community Development, Cooperation, Democracy, Leadership,...

51
51

Sep 18, 2013
09/13

by
Nandini Trivedi; Richard T. Scalettar; Mohit Randeria

texts

######
eye 51

######
favorite 0

######
comment 0

We study an electronic model of a 2D superconductor with onsite randomness using Quantum Monte Carlo simulations. The superfluid density is used to track the destruction of superconductivity in the ground state with increasing disorder. The non-superconducting state is identified as an insulator from the temperature dependence of its d.c. resistivity. The value of $\sigma_{\rm dc}$ at the superconductor-insulator transition appears to be non-universal.

Source: http://arxiv.org/abs/cond-mat/9509029v1

73
73

Jul 20, 2013
07/13

by
V. P. Gusynin; V. A. Miransky; I. A. Shovkovy

texts

######
eye 73

######
favorite 0

######
comment 0

It is shown that in $2+1$ dimensions, a constant magnetic field is a strong catalyst of dynamical flavor symmetry breaking, leading to generating a fermion dynamical mass even at the weakest attractive interaction between fermions. The essence of this effect is that in a magnetic field, in $2+1$ dimensions, the dynamics of fermion pairing is essentially one-dimensional. The effect is illustrated in the Nambu-Jona-Lasinio model in a magnetic field. The low-energy effective action in this model...

Source: http://arxiv.org/abs/hep-th/9407168v2

43
43

Sep 18, 2013
09/13

by
Vl. S Dotsenko; G. Harris; E. Marinari; E. Martinec; M. Picco; P. Windey

texts

######
eye 43

######
favorite 0

######
comment 0

We examine the geometrical and topological properties of surfaces surrounding clusters in the 3--$d$ Ising model. For geometrical clusters at the percolation temperature and Fortuin--Kasteleyn clusters at $T_c$, the number of surfaces of genus $g$ and area $A$ behaves as $A^{x(g)}e^{-\mu(g)A}$, with $x$ approximately linear in $g$ and $\mu$ constant. These scaling laws are the same as those we obtain for simulations of 3--$d$ bond percolation. We observe that cross--sections of spin domain...

Source: http://arxiv.org/abs/hep-th/9504076v1

60
60

Sep 23, 2013
09/13

by
Jacques Bros; Detlev Buchholz

texts

######
eye 60

######
favorite 0

######
comment 0

A relativistic version of the Kubo--Martin--Schwinger boundary condition is presented which fixes the properties of thermal equilibrium states with respect to arbitrary space--time translations. This novel condition is a natural generalization of the relativistic spectrum condition in the vacuum theory and has similar consequences. In combination with the condition of locality it gives rise to a Kaellen--Lehmann type representation of thermal propagators with specific regularity properties....

Source: http://arxiv.org/abs/hep-th/9511022v1

24
24

Sep 19, 2013
09/13

by
G. M. Gandenberger; N. J. MacKay

texts

######
eye 24

######
favorite 0

######
comment 0

We conjecture an exact S-matrix for the scattering of solitons in $d_{n+1}^{(2)}$ affine Toda field theory in terms of the R-matrix of the quantum group $U_q(c_n^{(1)})$. From this we construct the scattering amplitudes for all scalar bound states (breathers) of the theory. This S-matrix conjecture is justified by detailed examination of its pole structure. We show that a breather-particle identification holds by comparing the S-matrix elements for the lowest breathers with the S-matrix for the...

Source: http://arxiv.org/abs/hep-th/9506169v2

45
45

Sep 18, 2013
09/13

by
Hiraku Nakajima

texts

######
eye 45

######
favorite 0

######
comment 0

Various constructions of the affine Lie algebra action on the homology group of moduli spaces of instantons on 4-manifolds are discussed. The analogy between the local-global principle and the role of mass is also explained. The detailed proofs are given in separated papers \cite{Na-algebra,Na-Hilbert}.

Source: http://arxiv.org/abs/alg-geom/9510003v1

36
36

Sep 21, 2013
09/13

by
Bertrand Reulet; Michel Ramin; Helene Bouchiat; Dominique Mailly

texts

######
eye 36

######
favorite 0

######
comment 0

We have measured the flux dependence of both real and imaginary conductance of $GaAs/GaAlAs$ isolated mesoscopic rings at 310 MHz. The rings are coupled to a highly sensitive electromagnetic superconducting micro-resonator and lead to a perturbation of the resonance frequency and quality factor. This experiment provides a new tool for the investigation of the conductance of mesoscopic systems without any connection to invasive probes. It can be compared with recent theoretical predictions...

Source: http://arxiv.org/abs/cond-mat/9502029v2

45
45

Sep 19, 2013
09/13

by
D. F. Wang; C. Gruber

texts

######
eye 45

######
favorite 0

######
comment 0

In this remark, we note that the anyons, interacting with each other through pairwise potential in external magnetic field, exhibit a simple quantum group symmetry.

Source: http://arxiv.org/abs/cond-mat/9501032v2

47
47

Sep 22, 2013
09/13

by
R. A. Hyman; Kun Yang; R. N. Bhatt; S. M. Girvin

texts

######
eye 47

######
favorite 0

######
comment 0

We study the effects of random bonds on spin chains that have an excitation gap in the absence of randomness. The dimerized spin-1/2 chain is our principal example. Using an asymptotically exact real space decimation renormalization group procedure, we find that dimerization is a relevant perturbation at the random singlet fixed point. For weak dimerization, the dimerized chain is in a Griffiths phase with short range spin-spin correlations and a divergent susceptibility. The string topological...

Source: http://arxiv.org/abs/cond-mat/9505095v1

30
30

Sep 19, 2013
09/13

by
Arkady G. Aronov; Vladimir E. Kravtsov; Igor V. Lerner

texts

######
eye 30

######
favorite 0

######
comment 0

We use the semiclassical approach combined with the scaling results for the diffusion coefficient to consider the two-level correlation function $R(\varepsilon)$ for a disordered electron system in the crossover region, characterized by the appearance of a macroscopic correlation or localization length, $\xi$, that diverges at the metal-insulator transition. We show new critical statistics, characterized by a nontrivial asymptotic behavior of $R(\varepsilon)$, to emerge on both sides of the...

Source: http://arxiv.org/abs/cond-mat/9501072v1

35
35

Sep 18, 2013
09/13

by
P. J. Forrester

texts

######
eye 35

######
favorite 0

######
comment 0

Using the ground state $\psi_0$ of a multicomponent generalization of the Calogero-Sutherland model as a weight function, orthogonal polynomials in the coordinates of one of the species are constructed. Using evidence from exact analytic and numerical calculations, it is conjectured that these polynomials are the Jack polynomials $J_\kappa^{(1+1/\lambda)}$, where $\lambda$ is the coupling constant. The value of the normalization integral for $\psi_0 J_\kappa^{(1+1/\lambda)}$ is conjectured, and...

Source: http://arxiv.org/abs/cond-mat/9509012v2

35
35

Sep 22, 2013
09/13

by
I. V. Andreev; R. M. Weiner

texts

######
eye 35

######
favorite 0

######
comment 0

It is shown that a one to one correspondence between quantum fields in two different "phases" as might be realized for pions produced from a "hadron liquid" leads to squeezed states. The single and double inclusive cross sections for at chaotic superposition of such states are calculated. The correlation of identical pions is overbunched in comparison with canonical Bose-Einstein correlations.

Source: http://arxiv.org/abs/hep-ph/9505250v1

37
37

Sep 23, 2013
09/13

by
Piotr Zenczykowski

texts

######
eye 37

######
favorite 0

######
comment 0

Weak radiative hyperon decays present us with a long-standing puzzle, namely the question of validity of a hadron-level theorem proved by Hara. We briefly discuss the conflict between expectations based on Hara's theorem and experiment as well as the way in which the quark model evades the theorem. Violation of Hara's theorem in the quark model is traced back to the issue of hadron compositeness and the nonequivalence of standard ways of imposing gauge-invariance condition at quark and hadron...

Source: http://arxiv.org/abs/hep-ph/9512274v2

53
53

Sep 23, 2013
09/13

by
A. Dabholkar; J. P. Gauntlett; J. A. Harvey; D. Waldram

texts

######
eye 53

######
favorite 0

######
comment 0

Supersymmetric closed string theories contain an infinite tower of BPS-saturated, oscillating, macroscopic strings in the perturbative spectrum. When these theories have dual formulations, this tower of states must exist nonperturbatively as solitons in the dual theories. We present a general class of exact solutions of low-energy supergravity that corresponds to all these states. After dimensional reduction they can be interpreted as supersymmetric black holes with a degeneracy related to the...

Source: http://arxiv.org/abs/hep-th/9511053v1

33
33

Sep 23, 2013
09/13

by
E. Abdalla; M. C. B. Abdalla; K. D. Rothe

texts

######
eye 33

######
favorite 0

######
comment 0

In this work we study the zero-charge sector of massive two-dimensional Quantum Chromodynamics in the decoupled formulation. We find that some general features of the massless theory, concerning the constraints and the right- and left-moving character of the corresponding BRST currents, survive in the massive case. The implications for the integrability properties previously valid in the massless case, and the structure of the Hilbert space are discussed.

Source: http://arxiv.org/abs/hep-th/9511191v2

28
28

Sep 19, 2013
09/13

by
M. Bastero--Gil; J. Perez--Mercader

texts

######
eye 28

######
favorite 0

######
comment 0

In this paper we study the influence of the threshold effects due to massive degrees of freedom in the evolution with scale of gauge coupling constants. We first describe in detail the (standard) mass dependent renormalization prescription we use. This guides us to introduce and work with effective couplings, which are finite, process independent, and include complete threshold effects. We compute the evolution of the effective couplings in both, the Standard Model and its Minimal...

Source: http://arxiv.org/abs/hep-ph/9506222v1

30
30

Sep 23, 2013
09/13

by
S. Urano; D. Ring; R. Arnowitt

texts

######
eye 30

######
favorite 0

######
comment 0

It is shown that non-renormalizable gravitational interactions in the Higgs sector of supersymmetric grand unified theories (GUT's) can produce the breaking of the unifying gauge group $G$ at the GUT scale $M_{\rm GUT} \sim 10^{16}$~GeV. Such a breaking offers an attractive alternative to the traditional method where the superheavy GUT scale mass parameters are added ad hoc into the theory. The mechanism also offers a natural explanation for the closeness of the GUT breaking scale to the Planck...

Source: http://arxiv.org/abs/hep-ph/9512268v1

27
27

Sep 18, 2013
09/13

by
Tony M. Liss

texts

######
eye 27

######
favorite 0

######
comment 0

I review the prospects for measuring the properties of the top quark at the Tevatron, with an integrated luminosity of 2 fb$^{-1}$ or more, and at LHC in the early running at instantaneous luminosities of $10^{32}-10^{33}~cm^{-2}~s^{-1}$.

Source: http://arxiv.org/abs/hep-ph/9510274v1

36
36

Sep 18, 2013
09/13

by
G. G. Hartwell; P. S. Howe

texts

######
eye 36

######
favorite 0

######
comment 0

A family of harmonic superspaces associated with four-dimensional spacetime is described. Some applications to supersymmetric field theories, including supergravity, are given.

Source: http://arxiv.org/abs/hep-th/9412147v2

48
48

Sep 19, 2013
09/13

by
Stefano De Leo; Pietro Rotelli

texts

######
eye 48

######
favorite 0

######
comment 0

We show that, in quaternion quantum mechanics with a complex geometry, the minimal four Higgs of the unbroken electroweak theory naturally determine the quaternion invariance group which corresponds to the Glashow group. Consequently, we are able to identify the physical significance of the anomalous Higgs scalar solutions. We introduce and discuss the complex projection of the Lagrangian density.

Source: http://arxiv.org/abs/hep-th/9506179v1